Definition of "oestrone" [oestrone]

• Alternative spelling of estrone. (noun)

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• "Butenandt confirmed Marrian's discovery and explained the relationship between the new substance and oestrone."
• "In the process of purification it proved that the male hormone behaved in many respects like oestrone; when he realized this, it made Butenandt's work considerably easier."
• "Shortly after the discovery of oestrone, Marrian in London (1930) isolated from the urine of pregnant women a new hormone which he called oestriol."